Brush for electric contacts.



J. E. COLAS & E. L. M. RAGONOT. BRUSH FOR ELECTRIC CONTACTS. APPLIOATION FILED NOV. I 1913.

1,109,899. Patented Sept. 8, 1914.

. 2' SHEETS-SHEET 1.

IHE NORRIS PETERS CO PHOTU-LfrHQ. WASHINGTON. u I

J.- E. GOLAS & B. L. M. RAGONOT. BRUSH FOB. ELECTRIC CONTACTS. APPLICATION FILED NOV. 1, 1913.

1,109,899, Patented Sept. 8, 1914 2 SHEETS-SHEET 2.

THE NORRIS PETERS co. PHO7D-LITHO WASHING TON. u x

tion -of a movable oruslrde'vice whiolrcan ,constitute OIlQQOflJll] two contact'stintended to close a circuit and always enables'the contact with which the brush cooperates, to be maintained ina-conducting condition.

The apparatus cornprises. "a boX, either uni ' r. JOSEPH ERNEs'rcoLAs Ann EDMOND Lou s ivieniii'nneonor, or PARIS, FRANCE.

Be it known that we, JOSEPH ERNEST Coins and EDMOND LoUrsMARm RAGONOT,

residing'at 51 Rue Lacordaire, Paris, France,

have inventednew and useful Improvements i in or Relating to Brushesfor Electric Con- 1 5 This invention contacts'arranged on: railwaylines;

A feat'ure'ot the inventioniis the co'nstrucclosed or open, iiiwhich a brush 'can oscillate, mounted on a pivot pin and constantly brought back to its. normal position by suitable springs. The brush is formed of metal filaments held in pla'cewithout welding, so as to render possible the introduction of a greasy material between the various filaments.

The accompanying drawing shows by way;-

0f example a construction according to this 1 invention.

Figure 1 is; a section on line a. b 0 (Z of Fig. 2. Fi .2 is a section on line ef of Fig. 1. Figs. 3 and 4 show the brush proper, respectively in elevation and in plan, and

' Figs. 5 and 6 show constructional details of "the latter.

1 An adjustable nut 4 enables the height of the brush to be regulated as the'filaments wear out, and in accordancewith the height of the contact with which it cooperates. Springs 7 adjustable at will by means 'of threaded rods 8, react on lugs 9 provided on the spindle 3, and tend constantly to bring the brush'into the vertical position and to insure good frictional contact. The rigid frame 1 i made in two partsconnected to;- gether by bolts 10 and terminating if derelates" to improvements in 1 contacts int-ended for the intermittent'clos ving of electric circuits, the improvements being'nioreparticularly applicable to contacts which, in use, become covered with an insulating'layer, as is the case "for instance with i iannsn FOR nnnorarc con'rnors.

(Specification ofIletters Patent. Patented. Se1')t'.8,1914. Application filed November 1,1913. *SerialNo;798,733

siredlin two flanges 11 whichcan be secured to the vehicle or to; the movable part which carries them; Tothe tramel rigid walls 12 can besecured constituting a protecting box provided with a cover 13, either hinged, or movablein some other manner. These walls can beinclin'ed at 14 as shown in Fig.1, in the direction opposite to that ofthe traveling 'of the movable part, inorder to allow for theinclinationofthe brush. The screwthreaded rod 5 which is hollow, is used for lubricating. It carries a Staufler'lubricator oran oil tank15 intended tosupply the oil, as" will be hereinattereX- brush with plained. The brush proper is formed in the followihg minimal (Figs?) and 4).- The screw threaded rod 5. supporting the brushpis provided inside witha conduit 16 communi eating with the lubricator 15 connected in the usual manner' to the rod." Therod is heighten the spindle 3 by means of the 8' spindle 3. The rod is in onepiece with the disk 18 connected by screws 19 to'a disk 20 which is recessed and is provided with holes 21 as'shown in Figs. 5 and 6, into which are introduced wires 22 forming the elements of the brush. These wires are held. in place'by simply turning over their upper ends (see the enlarged scale view in Fig. 6),

The wires are grouped in each hole so as to leave in the center a recess 23 into which a' wedge can'be introduced for locking the wires. The lubricant or lubricating liquid passes through all the interstices left free between the wires themselves, as well as be tween the wires and the wedge, in order to descend along the different filaments and thus reach the contact to be brushed.

The filaments are held in place by tightening the disk 18provided with a projecting portion a which enters the recess of the hollow disk i 20. This results in the disk 18pressing allthefolded ends offilaments againstthebottom of the recess in the disk 20.-

Other methods of securing can be: em

ployed, or the tightening of the two disks 18 v and 20 can be effected in some other manner, for instance by screwing the disk 18 directly onto the disk 20, but the described means are simpler.

75 f held,aspreviously explained, at the desired 5 Paving now particularly described and ascertained the nature of our said-invention, and in what manner the same is to be performed, We declare that what we claim is 1-,

1. A contact brush holder comprising in combination with a brush consisting of a plurality of conductive filaments, a sup porting frame, an element holding the brush and pivotallyinounted in said supporting frameand means connect-ed with the brush holder for supplying a lubricant to the entire space between the various conductive filaments. Y r

2. A contact brush holding device comprising in combination with; a brush consisting of conduct ve filaments, a frame, a

supporting element pivotally mounted in the frame, a plurality of springs connected with the sides of .the frame and with said supporting element, the brush being axially adjustable in the supporting element and means for supplying a lubricant to the interspace between the filaments.

3. A contact brush holding device com prisingin combination with a brush consisting of a plurality of conductive elements, a frame, a supporting element pivotally mounted in said frame, a threaded member connected with-the brush and extending throughsald plvotal supporting element, a receptacle containing a lubricant on said threaded member, said threaded memher being provided with bore communif Gop iesof this patentmay be obtained for cating with said receptacle and terminating above the brush;

4. A contact brush holding device comprising in combination with a brush consisting of a plurality of electric filament-s, a

frame, a supporting element for the brush pivotally mounted in said frame, a member member beingprovided with a bore and means for feeding a lubricant into sald bore.

5. A contact brush holding device, comprising in combination with a brush conally mounted in said frame, springs detachably connected with the frame and with provided with a bore connected with the brush and extending through said support ing element and a lubricant receptacle",

mounted on said threaded member and adapted to supply a lubricant through the bore of said threaded member to the ele- I:

five cents each, byaddressing the Commissioner of Patents,

Washington, I). C. v

'sisting of a plurality of filaments, a frame, it a supporting element for the brush pivot- 50 said supporting element, a threaded member Q0, connected with the brush and extendingrada justably through the pivotal support, said 

